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QL = QLp + QLe + QLi + QLv

Where:

 

 QL        = Total latent load on building, Btuh
 QLp        = Total latent load due to people in the structure, Btuh
 QLe        = Total latent load due to equipment or appliances, Btuh
 QLi        = Total latent load due to infiltration air, Btuh
 QLv        = Total latent load due to ventilation air, Btuh

 

Ref: Manual J 8 - Page 2-3